9. Boxer
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The Boxer is a muscular, medium-built dog with a sleek coat that originated in Germany. This breed is highly intelligent, yet its playful nature often means it prefers entertainment over discipline during training sessions. Boxers require plenty of physical activity along with mental challenges; without enough stimulation, their behavior can quickly become difficult to manage. Incorporating games, rewards, and interactive toys is an effective way to hold their attention and encourage cooperation. When properly trained, a Boxer becomes deeply devoted to its household, gentle and tolerant with children, and naturally inclined to defend its loved ones.